Working TIM2

Core/Inc/dma.h

@@ -0,0 +1,52 @@
+/* USER CODE BEGIN Header */
+/**
+  ******************************************************************************
+  * @file    dma.h
+  * @brief   This file contains all the function prototypes for
+  *          the dma.c file
+  ******************************************************************************
+  * @attention
+  *
+  * Copyright (c) 2026 STMicroelectronics.
+  * All rights reserved.
+  *
+  * This software is licensed under terms that can be found in the LICENSE file
+  * in the root directory of this software component.
+  * If no LICENSE file comes with this software, it is provided AS-IS.
+  *
+  ******************************************************************************
+  */
+/* USER CODE END Header */
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __DMA_H__
+#define __DMA_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Includes ------------------------------------------------------------------*/
+#include "main.h"
+
+/* DMA memory to memory transfer handles -------------------------------------*/
+
+/* USER CODE BEGIN Includes */
+
+/* USER CODE END Includes */
+
+/* USER CODE BEGIN Private defines */
+
+/* USER CODE END Private defines */
+
+void MX_DMA_Init(void);
+
+/* USER CODE BEGIN Prototypes */
+
+/* USER CODE END Prototypes */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __DMA_H__ */
+

Core/Inc/stm32f1xx_hal_conf.h

@@ -42,7 +42,7 @@
 /*#define HAL_CORTEX_MODULE_ENABLED   */
 /*#define HAL_CRC_MODULE_ENABLED   */
 /*#define HAL_DAC_MODULE_ENABLED   */
-/*#define HAL_DMA_MODULE_ENABLED   */
+#define HAL_DMA_MODULE_ENABLED
 /*#define HAL_ETH_MODULE_ENABLED   */
 /*#define HAL_FLASH_MODULE_ENABLED   */
 #define HAL_GPIO_MODULE_ENABLED
@@ -64,7 +64,7 @@
 /*#define HAL_SMARTCARD_MODULE_ENABLED   */
 /*#define HAL_SPI_MODULE_ENABLED   */
 /*#define HAL_SRAM_MODULE_ENABLED   */
-/*#define HAL_TIM_MODULE_ENABLED   */
+#define HAL_TIM_MODULE_ENABLED
 /*#define HAL_UART_MODULE_ENABLED   */
 /*#define HAL_USART_MODULE_ENABLED   */
 /*#define HAL_WWDG_MODULE_ENABLED   */

Core/Inc/stm32f1xx_it.h

@@ -55,6 +55,8 @@ void SVC_Handler(void);
 void DebugMon_Handler(void);
 void PendSV_Handler(void);
 void SysTick_Handler(void);
+void DMA1_Channel5_IRQHandler(void);
+void TIM2_IRQHandler(void);
 /* USER CODE BEGIN EFP */
 
 /* USER CODE END EFP */

Core/Inc/tim.h

@@ -0,0 +1,54 @@
+/* USER CODE BEGIN Header */
+/**
+  ******************************************************************************
+  * @file    tim.h
+  * @brief   This file contains all the function prototypes for
+  *          the tim.c file
+  ******************************************************************************
+  * @attention
+  *
+  * Copyright (c) 2026 STMicroelectronics.
+  * All rights reserved.
+  *
+  * This software is licensed under terms that can be found in the LICENSE file
+  * in the root directory of this software component.
+  * If no LICENSE file comes with this software, it is provided AS-IS.
+  *
+  ******************************************************************************
+  */
+/* USER CODE END Header */
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __TIM_H__
+#define __TIM_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Includes ------------------------------------------------------------------*/
+#include "main.h"
+
+/* USER CODE BEGIN Includes */
+
+/* USER CODE END Includes */
+
+extern TIM_HandleTypeDef htim2;
+
+/* USER CODE BEGIN Private defines */
+
+/* USER CODE END Private defines */
+
+void MX_TIM2_Init(void);
+
+void HAL_TIM_MspPostInit(TIM_HandleTypeDef *htim);
+
+/* USER CODE BEGIN Prototypes */
+
+/* USER CODE END Prototypes */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __TIM_H__ */
+

Core/Src/dma.c

@@ -0,0 +1,55 @@
+/* USER CODE BEGIN Header */
+/**
+  ******************************************************************************
+  * @file    dma.c
+  * @brief   This file provides code for the configuration
+  *          of all the requested memory to memory DMA transfers.
+  ******************************************************************************
+  * @attention
+  *
+  * Copyright (c) 2026 STMicroelectronics.
+  * All rights reserved.
+  *
+  * This software is licensed under terms that can be found in the LICENSE file
+  * in the root directory of this software component.
+  * If no LICENSE file comes with this software, it is provided AS-IS.
+  *
+  ******************************************************************************
+  */
+/* USER CODE END Header */
+
+/* Includes ------------------------------------------------------------------*/
+#include "dma.h"
+
+/* USER CODE BEGIN 0 */
+
+/* USER CODE END 0 */
+
+/*----------------------------------------------------------------------------*/
+/* Configure DMA                                                              */
+/*----------------------------------------------------------------------------*/
+
+/* USER CODE BEGIN 1 */
+
+/* USER CODE END 1 */
+
+/**
+  * Enable DMA controller clock
+  */
+void MX_DMA_Init(void)
+{
+
+  /* DMA controller clock enable */
+  __HAL_RCC_DMA1_CLK_ENABLE();
+
+  /* DMA interrupt init */
+  /* DMA1_Channel5_IRQn interrupt configuration */
+  HAL_NVIC_SetPriority(DMA1_Channel5_IRQn, 0, 0);
+  HAL_NVIC_EnableIRQ(DMA1_Channel5_IRQn);
+
+}
+
+/* USER CODE BEGIN 2 */
+
+/* USER CODE END 2 */
+

Core/Src/main.c

@@ -18,11 +18,13 @@
 /* USER CODE END Header */
 /* Includes ------------------------------------------------------------------*/
 #include "main.h"
+#include "dma.h"
+#include "tim.h"
 #include "gpio.h"
 
 /* Private includes ----------------------------------------------------------*/
 /* USER CODE BEGIN Includes */
-
+// #include "ws2812b-dma-driver.h"
 /* USER CODE END Includes */
 
 /* Private typedef -----------------------------------------------------------*/
@@ -86,8 +88,19 @@ int main(void)
 
   /* Initialize all configured peripherals */
   MX_GPIO_Init();
+  MX_DMA_Init();
+  MX_TIM2_Init();
   /* USER CODE BEGIN 2 */
 
+  HAL_TIM_Base_Start(&htim2);
+
+  int8_t test[] = { 0, 4, 7, 10, 14, 17 };
+
+  HAL_TIM_PWM_Start_DMA(&htim2, TIM_CHANNEL_1, test, sizeof(test));
+  //HAL_TIM_PWM_Start(&htim2, TIM_CHANNEL_1);
+
+  uint8_t data[] = {0xff, 0x00, 0xff, 0x00, 0xFF, 0x00, 0xfF, 0x00};
+
   /* USER CODE END 2 */
 
   /* Infinite loop */
@@ -97,6 +110,9 @@ int main(void)
     /* USER CODE END WHILE */
 
     /* USER CODE BEGIN 3 */
+	  HAL_GPIO_TogglePin(LED_Green_GPIO_Port, LED_Green_Pin);
+	  HAL_Delay(500);
+
   }
   /* USER CODE END 3 */
 }
@@ -119,7 +135,7 @@ void SystemClock_Config(void)
   RCC_OscInitStruct.HSIState = RCC_HSI_ON;
   RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
   RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
-  RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
+  RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL5;
   if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
   {
     Error_Handler();
@@ -134,7 +150,7 @@ void SystemClock_Config(void)
   RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
   RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
 
-  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
+  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_1) != HAL_OK)
   {
     Error_Handler();
   }

Core/Src/stm32f1xx_it.c

@@ -55,7 +55,8 @@
 /* USER CODE END 0 */
 
 /* External variables --------------------------------------------------------*/
-
+extern DMA_HandleTypeDef hdma_tim2_ch1;
+extern TIM_HandleTypeDef htim2;
 /* USER CODE BEGIN EV */
 
 /* USER CODE END EV */
@@ -198,6 +199,34 @@ void SysTick_Handler(void)
 /* please refer to the startup file (startup_stm32f1xx.s).                    */
 /******************************************************************************/
 
+/**
+  * @brief This function handles DMA1 channel5 global interrupt.
+  */
+void DMA1_Channel5_IRQHandler(void)
+{
+  /* USER CODE BEGIN DMA1_Channel5_IRQn 0 */
+
+  /* USER CODE END DMA1_Channel5_IRQn 0 */
+  HAL_DMA_IRQHandler(&hdma_tim2_ch1);
+  /* USER CODE BEGIN DMA1_Channel5_IRQn 1 */
+
+  /* USER CODE END DMA1_Channel5_IRQn 1 */
+}
+
+/**
+  * @brief This function handles TIM2 global interrupt.
+  */
+void TIM2_IRQHandler(void)
+{
+  /* USER CODE BEGIN TIM2_IRQn 0 */
+
+  /* USER CODE END TIM2_IRQn 0 */
+  HAL_TIM_IRQHandler(&htim2);
+  /* USER CODE BEGIN TIM2_IRQn 1 */
+
+  /* USER CODE END TIM2_IRQn 1 */
+}
+
 /* USER CODE BEGIN 1 */
 
 /* USER CODE END 1 */

Core/Src/tim.c

@@ -0,0 +1,171 @@
+/* USER CODE BEGIN Header */
+/**
+  ******************************************************************************
+  * @file    tim.c
+  * @brief   This file provides code for the configuration
+  *          of the TIM instances.
+  ******************************************************************************
+  * @attention
+  *
+  * Copyright (c) 2026 STMicroelectronics.
+  * All rights reserved.
+  *
+  * This software is licensed under terms that can be found in the LICENSE file
+  * in the root directory of this software component.
+  * If no LICENSE file comes with this software, it is provided AS-IS.
+  *
+  ******************************************************************************
+  */
+/* USER CODE END Header */
+/* Includes ------------------------------------------------------------------*/
+#include "tim.h"
+
+/* USER CODE BEGIN 0 */
+
+/* USER CODE END 0 */
+
+TIM_HandleTypeDef htim2;
+DMA_HandleTypeDef hdma_tim2_ch1;
+
+/* TIM2 init function */
+void MX_TIM2_Init(void)
+{
+
+  /* USER CODE BEGIN TIM2_Init 0 */
+
+  /* USER CODE END TIM2_Init 0 */
+
+  TIM_ClockConfigTypeDef sClockSourceConfig = {0};
+  TIM_MasterConfigTypeDef sMasterConfig = {0};
+  TIM_OC_InitTypeDef sConfigOC = {0};
+
+  /* USER CODE BEGIN TIM2_Init 1 */
+
+  /* USER CODE END TIM2_Init 1 */
+  htim2.Instance = TIM2;
+  htim2.Init.Prescaler = 0;
+  htim2.Init.CounterMode = TIM_COUNTERMODE_UP;
+  htim2.Init.Period = 19;
+  htim2.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
+  htim2.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
+  if (HAL_TIM_Base_Init(&htim2) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
+  if (HAL_TIM_ConfigClockSource(&htim2, &sClockSourceConfig) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  if (HAL_TIM_PWM_Init(&htim2) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
+  sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
+  if (HAL_TIMEx_MasterConfigSynchronization(&htim2, &sMasterConfig) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  sConfigOC.OCMode = TIM_OCMODE_PWM1;
+  sConfigOC.Pulse = 9;
+  sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH;
+  sConfigOC.OCFastMode = TIM_OCFAST_DISABLE;
+  if (HAL_TIM_PWM_ConfigChannel(&htim2, &sConfigOC, TIM_CHANNEL_1) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  /* USER CODE BEGIN TIM2_Init 2 */
+
+  /* USER CODE END TIM2_Init 2 */
+  HAL_TIM_MspPostInit(&htim2);
+
+}
+
+void HAL_TIM_Base_MspInit(TIM_HandleTypeDef* tim_baseHandle)
+{
+
+  if(tim_baseHandle->Instance==TIM2)
+  {
+  /* USER CODE BEGIN TIM2_MspInit 0 */
+
+  /* USER CODE END TIM2_MspInit 0 */
+    /* TIM2 clock enable */
+    __HAL_RCC_TIM2_CLK_ENABLE();
+
+    /* TIM2 DMA Init */
+    /* TIM2_CH1 Init */
+    hdma_tim2_ch1.Instance = DMA1_Channel5;
+    hdma_tim2_ch1.Init.Direction = DMA_MEMORY_TO_PERIPH;
+    hdma_tim2_ch1.Init.PeriphInc = DMA_PINC_DISABLE;
+    hdma_tim2_ch1.Init.MemInc = DMA_MINC_ENABLE;
+    hdma_tim2_ch1.Init.PeriphDataAlignment = DMA_PDATAALIGN_HALFWORD;
+    hdma_tim2_ch1.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
+    hdma_tim2_ch1.Init.Mode = DMA_NORMAL;
+    hdma_tim2_ch1.Init.Priority = DMA_PRIORITY_LOW;
+    if (HAL_DMA_Init(&hdma_tim2_ch1) != HAL_OK)
+    {
+      Error_Handler();
+    }
+
+    __HAL_LINKDMA(tim_baseHandle,hdma[TIM_DMA_ID_CC1],hdma_tim2_ch1);
+
+    /* TIM2 interrupt Init */
+    HAL_NVIC_SetPriority(TIM2_IRQn, 0, 0);
+    HAL_NVIC_EnableIRQ(TIM2_IRQn);
+  /* USER CODE BEGIN TIM2_MspInit 1 */
+
+  /* USER CODE END TIM2_MspInit 1 */
+  }
+}
+void HAL_TIM_MspPostInit(TIM_HandleTypeDef* timHandle)
+{
+
+  GPIO_InitTypeDef GPIO_InitStruct = {0};
+  if(timHandle->Instance==TIM2)
+  {
+  /* USER CODE BEGIN TIM2_MspPostInit 0 */
+
+  /* USER CODE END TIM2_MspPostInit 0 */
+
+    __HAL_RCC_GPIOA_CLK_ENABLE();
+    /**TIM2 GPIO Configuration
+    PA0-WKUP     ------> TIM2_CH1
+    */
+    GPIO_InitStruct.Pin = GPIO_PIN_0;
+    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
+    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
+
+  /* USER CODE BEGIN TIM2_MspPostInit 1 */
+
+  /* USER CODE END TIM2_MspPostInit 1 */
+  }
+
+}
+
+void HAL_TIM_Base_MspDeInit(TIM_HandleTypeDef* tim_baseHandle)
+{
+
+  if(tim_baseHandle->Instance==TIM2)
+  {
+  /* USER CODE BEGIN TIM2_MspDeInit 0 */
+
+  /* USER CODE END TIM2_MspDeInit 0 */
+    /* Peripheral clock disable */
+    __HAL_RCC_TIM2_CLK_DISABLE();
+
+    /* TIM2 DMA DeInit */
+    HAL_DMA_DeInit(tim_baseHandle->hdma[TIM_DMA_ID_CC1]);
+
+    /* TIM2 interrupt Deinit */
+    HAL_NVIC_DisableIRQ(TIM2_IRQn);
+  /* USER CODE BEGIN TIM2_MspDeInit 1 */
+
+  /* USER CODE END TIM2_MspDeInit 1 */
+  }
+}
+
+/* USER CODE BEGIN 1 */
+
+/* USER CODE END 1 */